@article{heine_walker_jett_isik_mckeand_2022, title={Pollination Bag Type Affects Ovule Development and Seed Yields in Pinus taeda L.}, volume={12}, ISSN={["1938-3738"]}, url={https://doi.org/10.1093/forsci/fxac052}, DOI={10.1093/forsci/fxac052}, abstractNote={Abstract}, journal={FOREST SCIENCE}, author={Heine, Austin J. and Walker, Trevor D. and Jett, Jackson B. and Isik, Fikret and McKeand, Steven E.}, year={2022}, month={Dec} }
 @article{ford_mckeand_jett_isik_2015, title={Effects of Inbreeding on Growth and Quality Traits in Loblolly Pine}, volume={61}, ISSN={0015-749X}, url={http://dx.doi.org/10.5849/forsci.13-185}, DOI={10.5849/forsci.13-185}, abstractNote={The effect of inbreeding in two provenances of loblolly pine (Pinus taeda L.) was investigated. Ten parent trees from each of the Coastal Plain and Piedmont provenances in the southern United States were mated to produce outcrossed (F = 0), half-sib mated (F = 0.125), full-sib mated (F = 0.25), and selfed (F = 0.5) progeny. Growth and quality traits were measured in the progeny of the four inbreeding levels at age 9. Inbreeding decreased height growth up to 21% and stem volume up to 33% but did not affect stem straightness or fusiform rust disease incidence. As expected from quantitative genetics theory, inbreeding depression was more pronounced in crosses between more closely related individuals. Responses to inbreeding varied within parental groups at each inbreeding level, especially depending on the pollen source. Most of the parent groups showed consistent decreases in vigor with increased inbreeding. However, one specific parent group actually had a positive growth response, demonstrating that such genotypes may be selected for advanced-generation breeding, especially when breeding strategies make use of crosses among related individuals. Variation among inbreeding levels and among parents within inbreeding levels presents opportunities as well as challenges for developing breeding strategies in forest trees.}, number={3}, journal={Forest Science}, publisher={Oxford University Press (OUP)}, author={Ford, Graham A. and McKeand, Steven E. and Jett, Jackson B. and Isik, Fikret}, year={2015}, month={Jun}, pages={579–585} }
 @inproceedings{mckeand_gerwig_cumbie_jett_2008, title={Seed orchard management strategies for deployment of intensively selected loblolly pine families in the southern US}, ISBN={978-91-85911-28-8}, booktitle={Seed orchards, Proceedings from a conference at Umea, Sweden}, author={McKeand, S. E. and Gerwig, D. M. and Cumbie, W. P. and Jett, J. B.}, year={2008}, pages={177–182} }
 @book{jett_robinson_2006, title={Economic development outlook}, institution={NC State College of Natural Resources}, author={Jett, J. B. and Robinson, D. J.}, year={2006} }
 @article{mckeand_jett_2000, title={Grafting loblolly pine}, volume={17}, number={1}, journal={Bulletin of the American Conifer Society}, author={McKeand, S. E. and Jett, J. B.}, year={2000}, pages={22–30} }
 @book{mckeand_jett_1998, title={Grafting loblolly pine}, journal={1998 International Short Course in Forest Genetics and Tree Improvement}, institution={Department of Forestry,  N.C. State University}, author={McKeand, S. E. and Jett, J. B.}, year={1998} }
 @article{jayawickrama_mckeand_jett_1998, title={Phenological variation in height and diameter growth in provenances and families of loblolly pine}, volume={16}, ISSN={["1573-5095"]}, DOI={10.1023/A:1016527317326}, number={1}, journal={NEW FORESTS}, author={Jayawickrama, KJS and McKeand, SE and Jett, JB}, year={1998}, month={Jul}, pages={11–25} }
 @article{jayawickrama_mckeand_jett_wheeler_1997, title={Date of earlywood-latewood transition in provenances and families of loblolly pine, and its relationship to growth phenology and juvenile wood specific gravity}, volume={27}, ISSN={["0045-5067"]}, DOI={10.1139/x97-091}, abstractNote={When grown together in plantations, fast-growing southern and coastal sources of loblolly pine (Pinus taeda L.) often have lower wood specific gravity than northern and inland sources. This study investigated whether this phenomenon could be explained by a later transition to latewood, associated with a longer period of height growth, of the fast-growing sources. Seven to nine open-pollinated families, from each of four provenances, were grown at two locations in southwest Georgia. Tree cambia were wounded with a needle during summer and fall of the fifth and sixth growing seasons (1993 and 1994). The wounding was done to leave a mark in the xylem used later to determine whether earlywood or latewood was being produced at the time of wounding. Provenances were significantly different for the date of transition in 1994, with 22 days between the earliest and the latest. For most families, latewood transition followed height growth cessation in 1993, but preceded it in 1994. The date of latewood transition had a strong positive correlation (family mean basis across provenances) with the date of height growth cessation and a moderate negative correlation with specific gravity. Juvenile wood specific gravity had a weak (nonsignificant) negative correlation with annual height increment and a stronger negative correlation, significant in 1993, with diameter increment. Correlations within provenances were weak or close to zero. This study provided evidence for an association (especially at the provenance level) between a later cessation of height growth, a later transition to latewood, and lower specific gravity in 5- and 6-year-old trees.}, number={8}, journal={CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE}, author={Jayawickrama, KJS and McKeand, SE and Jett, JB and Wheeler, EA}, year={1997}, month={Aug}, pages={1245–1253} }
 @article{jayawickrama_mckeand_jett_1997, title={Rootstock effects on scion growth and reproduction in 8-year-old grafted loblolly pine}, volume={27}, DOI={10.1139/cjfr-27-11-1781}, number={11}, journal={Canadian Journal of Forest Research}, author={Jayawickrama, K. J. S. and McKeand, Steven and Jett, J. B.}, year={1997}, pages={1781–1787} }
 @inproceedings{jett_williford_mckeand_powell_1997, title={Timing of nitrogen applications in a loblolly pine seed orchard}, booktitle={Proceedings of the 24th Southern Forest Tree Improvement Conference}, author={Jett, J. B. and Williford, M. and McKeand, S. E. and Powell, M.}, year={1997}, pages={187–191} }
 @inproceedings{belonger_mckeand_jett_1997, title={Wood density assessment of diverse families of loblolly pine using x-ray densitometry}, booktitle={Proceedings of the 24th Southern Forest Tree Improvement Conference}, author={Belonger, P. J. and McKeand, S. E. and Jett, J. B.}, year={1997}, pages={133–142} }
 @book{jett_mckeand_1996, title={Establishment and management of pine clonal seed orchards}, journal={Tree Improvement Manual}, institution={N.C. State University-Industry Cooperative Tree Improvement Program}, author={Jett, J. B. and McKeand, S. E.}, year={1996} }
 @inproceedings{belonger_mckeand_jett_1996, title={Genetic and environmental effects on biomass production and wood density in loblolly pine}, booktitle={Tree Improvement for Sustainable Tropical Forestry: Proceedings of the QFRI-IUFRO Conference}, author={Belonger, P. J. and McKeand, S. E. and Jett, J. B.}, editor={M. J. Dieters, A. C. Matheson and D. G. Nikles, C. E. Harwood and Walker, S. M.Editors}, year={1996}, pages={307–310} }
 @book{mckeand_jett_1996, title={Progeny testing procedures}, journal={Tree Improvement Manual}, institution={N.C. State University-Industry Cooperative Tree Improvement Program}, author={McKeand, S. E. and Jett, J. B.}, year={1996} }
 @book{mckeand_jett_1996, title={Seed handling and growing containerized seedlings}, journal={Tree Improvement Manual}, author={McKeand, S. E. and Jett, J. B.}, year={1996} }
 @article{mckeand_bridgwater_mckinley_jett_arnold_1995, title={1994 seed collection from natural stands of Fraser fir and plans for breeding and genetics research at NCSU}, volume={22}, journal={Limbs & Needles}, author={McKeand, S. and Bridgwater, F. and McKinley, C. and Jett, J. B. and Arnold, R.}, year={1995}, pages={4–7} }
 @inproceedings{jayawickrama_mckeand_jett_1995, title={Phenological variation in height and diameter growth in provenances and families of loblolly pine}, booktitle={Proceedings of the 23rd Southern Forest Tree Improvement Conference}, author={Jayawickrama, K. J. S. and McKeand, S. E. and Jett, J. B.}, year={1995}, pages={33–39} }
 @inproceedings{mckeand_jett_1993, title={Growth and stem sinuosity of diverse provenances of three-year-old loblolly pine}, booktitle={Proceedings of the 22nd Southern Forest Tree Improvement Conference}, author={McKeand, S. E. and Jett, J. B.}, year={1993}, pages={208–213} }
 @article{jett_mckeand_liu_huxster_1993, title={Seed source variation for height and crown traits of Fraser fir Christmas trees}, volume={17}, number={1}, journal={Southern Journal of Applied Forestry}, author={Jett, J. B. and McKeand, S. E. and Liu, Y. and Huxster, W. T.}, year={1993}, pages={5–9} }
 @article{jett_guiness_1992, title={Growth and wood properties in a Carolina Sandhills pine seed source study}, volume={16}, number={4}, journal={Southern Journal of Applied Forestry}, author={Jett, J. B. and Guiness, W. M.}, year={1992}, pages={164} }
 @article{jett_mckeand_weir_1991, title={STABILITY OF JUVENILE WOOD SPECIFIC-GRAVITY OF LOBLOLLY-PINE IN DIVERSE GEOGRAPHIC AREAS}, volume={21}, ISSN={["0045-5067"]}, DOI={10.1139/x91-148}, abstractNote={ The stability of wood specific gravity for 12-year-old loblolly pine (Pinustaeda L.) was evaluated for 18 open-pollinated families and four bulked seed lots representing provenances from the eastern shore of Maryland; Marion County, Florida; Gulf Hammock, Florida; and Livingston Parish, Louisiana. Wood samples were collected from seven plantings chosen to provide a north–south and east–west sample distribution essentially encompassing an area spanning the natural range of loblolly pine. There was significant genotype × environment interaction, and 4 of the 18 families were classified as unstable for specific gravity. These four families accounted for 49.5% of the genotype × environment interaction sum of squares. However, the loss in potential gain in a breeding program for specific gravity due to the presence of a significant genotype × environment interaction was estimated to be only 1%. Loblolly pine from the Florida provenances and from the widely planted Livingston Parish provenance consistently displayed low specific gravity and ranked at or near the bottom at all test locations, including the southernmost plantings. }, number={7}, journal={CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE}, author={JETT, JB and MCKEAND, SE and WEIR, RJ}, year={1991}, month={Jul}, pages={1080–1085} }
 @article{jett_mckeand_1991, title={The genetic improvement of Fraser fir Christmas trees in North Carolina - an update}, volume={18}, journal={Limbs & Needles}, author={Jett, J. B. and McKeand, S. E.}, year={1991}, pages={26} }
 @article{jett_frampton_1990, title={Effect of rehydration on in vitro germination of loblolly pine pollen}, volume={14}, number={1}, journal={Southern Journal of Applied Forestry}, author={Jett, J. B. and Frampton, L. J., Jr.}, year={1990}, pages={48–51} }
 @book{jett_mckeand_huxster_summerville_1990, title={Fraser fir Christmas tree workshop manual}, institution={N.C. State University}, author={Jett, J. B. and McKeand, S. E. and Huxster, W. T. and Summerville, K. O.}, year={1990}, pages={102} }
 @article{frampton_jett_1989, title={JUVENILE WOOD SPECIFIC-GRAVITY OF LOBLOLLY-PINE TISSUE-CULTURE PLANTLETS AND SEEDLINGS}, volume={19}, ISSN={["0045-5067"]}, DOI={10.1139/x89-208}, abstractNote={ Juvenile-wood specific gravity of loblolly pine (Pinustaeda L.) tissue culture plantlets and seedlings were compared. Wood samples collected from several (6 to 13) families at three sites, each at a different age (2, 3, and 6 years), showed a significant difference between the overall plantlet and seedling mean specific gravity only in the youngest material (0.387 versus 0.356, respectively). Another collection of wood samples from three different sites at age 5 years showed that the within-site variation in specific gravity for a single clone was 29% that of the open-pollinated family from which it was derived. When tissue culture techniques become practical, operational clonal plantations of loblolly pine should offer substantial improvement in the uniformity of wood produced relative to the heterogeneous seedling-origin plantations currently being established. }, number={10}, journal={CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE}, author={FRAMPTON, LJ and JETT, JB}, year={1989}, month={Oct}, pages={1347–1350} }
 @article{struve_jett_mckeand_cannon_1989, title={SUBSOILING IN A LOBLOLLY-PINE SEED ORCHARD - EFFECTS ON SEED QUALITY}, volume={19}, ISSN={["0045-5067"]}, DOI={10.1139/x89-077}, abstractNote={ An 8-year-old loblolly pine (Pinustaeda L.) seed orchard was subsoiled by making one (single-rip treatment) or three (multiple-rip treatment) parallel rips on opposite sides of the trees. A nonsubsoil (control) treatment was also included. Seeds were extracted and sized into small, medium, and large. Subsoiling treatments had no effect on number or percentage of small, medium, and large seeds. The multiple-rip treatment produced significantly more seeds per cone than the control treatment, but no more than the single-rip treatment. Seed size did not affect seed germination, but strong clonal effects in seed quality and vigor occurred. There was no effect of any of the subsoiling treatments on seed germination. Any subsoiling treatments used to enhance tree vigor or to alleviate soil compaction in a seed orchard should have minimal influence on seed quality. }, number={4}, journal={CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE}, author={STRUVE, DK and JETT, JB and MCKEAND, SE and CANNON, GP}, year={1989}, month={Apr}, pages={505–508} }
 @article{mckeand_jett_sprague_todhunter_1987, title={Summer wax grafting of loblolly pine}, volume={11}, journal={Southern Journal of Applied Forestry}, author={McKeand, S. E. and Jett, J. B. and Sprague, J. R. and Todhunter, M. N.}, year={1987}, pages={96–99} }
 @book{mckeand_jett_1983, title={Seedling production greenhouse and nursery}, journal={Short Course on Accelerated Breeding}, institution={N.C. State University-Industry Cooperative Tree Improvement Program}, author={McKeand, S. E. and Jett, J. B.}, year={1983} }